In descriptive statistics, a box plot (or boxplot) displays the main properties of a dataset through its quartiles. The box spans from the first quartile to the third quartile, with a horizontal line ...

THE recording of business activity by graphical means is extending rapidly among the controllers of large businesses, and a book like the present volume, written primarily in the atmosphere of ...

After chapters on the description of frequency distribution by graphical methods, ... The present volume confines its attention almost exclusively to the descriptive theory of statistics.